http://ir.lib.ruh.ac.lk/handle/iruor/6320 Mon, 06 Apr 2026 19:18:47 GMT 2026-04-06T19:18:47Z http://ir.lib.ruh.ac.lk/handle/iruor/12227 ZOO 3172 - Ornithology Science Fri, 01 Nov 2019 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/12227 2019-11-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/2267 ZOO3172 - Ornithology Department of Zoology Tue, 01 Aug 2017 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/2267 2017-08-01T00:00:00Z